import { AbstractBusinessObject, IBusinessObject } from '@heduapp/book-objects/business-object';
import { ContentGroup, ContentLeaf } from '../db/model';
import { ChainID, UUID } from './db-codec';
export declare function isContentGroupDeleted(contentGroup: ContentGroup): boolean;
export declare function isContentLeafDeleted(contentLeaf: ContentLeaf): boolean;
export declare function decodeContentGroup(contentGroup: ContentGroup): AbstractBusinessObject;
export declare function decodeContentLeaf(businessObject: IBusinessObject, chainId?: string): AbstractBusinessObject;
export declare function shouldDecodeContentGroup(uuid: UUID): Promise<boolean>;
export declare function shouldDecodeContentLeaf(chainID: ChainID): Promise<boolean>;